cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A055031 Numerator of (Sum(m^(n-1),m=1..n-1)+1)/n.

Table of values

n a(n)
1 1
2 1
3 2
4 37
5 71
6 2213
7 9596
8 1200305
9 24684613
10 287152493
11 1355849266
12 427675990237
13 1032458258547
14 228796942438201
15 16841089312342856
16 665478473553144001
17 1653031004194447737
18 631449646252135295657
19 3167496749732497119310

List of values

[1, 1, 2, 37, 71, 2213, 9596, 1200305, 24684613, 287152493, 1355849266, 427675990237, 1032458258547, 228796942438201, 16841089312342856, 665478473553144001, 1653031004194447737, 631449646252135295657, 3167496749732497119310]